To daniel h



(No Model.)

W; PINTARD.

SAFETY APPLIANCE FOR. ELEVATORS. No. 286,064. Patented 001;. 2, 1883.

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llnirnn TATES PATENT FFlCE.

\VILLIAM PINTARD, OF RED BANK, NEWJERSEY, ASSIGNOR OF ONE-HALF TO DANIELH. APPLEGATE, OF SAME PLACE.

SAFETY APPLIANCE FOR ELEVATORS.

SFEGIFICATION forming part of Letters Patent No. 286,064, dated October2, 1883.

/ Application filed August 24, 1883. (No model.)

To all whom it may concern:

Be it known that I, WILLIAM PINTARD, a citizen of the United States,residing at Red Bank, in the county of Monmouth and State of New Jersey,have invented a new and useful Safety Appliance for Passenger andFreight Elevators, of which the following is a specification.

My invention relates to improvements in safety appliances for elevators,in which a combined ratch and wedge bar operates to arrest the fall ofthe car when detached from its cable by being forced by the gravity ofthe car into an auxiliary ratch-bar secured I 5 to the elevator-well;and the object of my provement is to provide an appliance or de- 'vicethat will successfully check the fall of the car in case of the breakingof the cable, or of any accident happening that would otherwise causethe car to be precipitated. I attain this object bythe mechanismillustrated in the accompanying drawings, in which- Figure 1 is a plantransverse view of an elevator and well with the said applianceattached. Fig. 2 represents the combined ratch and wedge bar; and Fig.3, a plan View of the ratch and wed e bar and auxiliary ratch and Wedgebars, and showing the position of the same when the car is checked inits fall.

Similar letters refer to similar parts through out the several views.

The auxiliary wedge-barB, adapted to one side of the bar A, is attachedsecurely to the car D. The auxiliary ratch 0, adapted to the other sideof the bar A, is secured to the side of the elevator-well E. The bar Ais adapted to work independently of the ratch and wedge bar attached tothe well and car, its action being controlled by a cable, a, or itsequivalent, connected with the drum or hoisting apparatus F.

The main features of the practical working of this device are asfollows: The car D 45 has attached thereto the wedge-bar B, adapted tothe'wedges on the one side of thebar A. This bar A rests by its ownweight into the wedge-bar 13, attached to the car, and is carried up anddown with the car, and when 50 the car is working properly the ratch onthe other side of the bar A just clears the ratch 0 attached to the sideof the well. The

bar A is attached to a rope or cable, a, which passes over a wheel orgearing, H, at the top of the well, which works independently of theother wheels, and thus to the main drum or gearing E, which actuates theele vator.

It will be readily seen that if from any cause whatever the elevator-carshould be detached or be freed from the drum by the parting of the cable(1, or otherwise, so as to allow it to fall, the accelerated motion thusgiven to the car, which cannot be imparted to the bar A, will-cause thewedges attached 6 5 to the car to force the bar A outward sufficientlyto catch on the ratch 0, attached to the well, thus stopping a furtherdownward movement of said bar A. The bar A having been checked, thewedge-bar B on the side of the car acts upon the bar A like a doublewedge, so that it is only possible for the car to fall a few inches,thus arresting the further descent of the car. The relative position ofthe parts of the device when the car is thus stopped by 7 5 it is shownin Fig. 3. The normal position of the parts is shown in Fig. 1.

To guard against the slipping of the wedges past each other in case ofthe possible spreading of the well, the wedges are notched, as shown,which provides a rest for the car in such case.

The bar A can be prevented from slipping from side to side by pins ortheir equivalent.

The position of the device as shown in Fig. 1 in its relation to the carand well is not important. It is thus shown for the sake of betterillustration. It may be placed laterally between the car and well, or,in fact, in any perpendicular position to suit each individual case, thedevice being adapted to be used on any elevator.

Having thus described my invention, I claim as new and desireto secureby Letters Patent 1. The combined ratch and wedge bar A, adapted to thewedge-bar B and ratch 0, substantially as shown, forthe purposespecified.

2. The combined ratch and wedge bar A, in combination with the auxiliarywedge-bar B and the ratch O, substantially as set forth. Ioo

WM. PINTARD.

' Witnesses:

T. A. CUR'rIs, W. A. ,TI ToN.

